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【多选题】
根据《环境空气质量手工监测技术规范》（HJ/T194—2005），环境空气间断采样的质量保证要求正确的是（）。A.
每次采样前，应对采样系统的气密性进行认真检查，确认无漏气现象后，方可进行采样
B.
应使用检定合格的采样器。使用前必须经过流量校准，流量误差应不大于2.5%
C.
滤膜采集后，如不能立即称重，常温条件下保存
D.
对分析有机成份的滤膜采集后应立即放入-20℃冷冻箱内保存至样品处理前，为防止有机物的分解
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【单选题】Acrobat安装目录下的plug_ins文件夹是用来存放插件的，如果不慎将其删除，则（）
A.
Acrobat会因缺少文件而无法启动
B.
Acrobat可正常启动，但功能变少
C.
Acrobat可启动，但会提示要求运行“帮助（Help）”菜单下的“检测和修复（DetectandRepair）”命令
D.
Acrobat可启动，并会自动重新生成plug_ins文件夹
【单选题】—In modem times, girls like beautiful clothes. —Yes, _____ and ______. After all, our life has greatly improved. [ ]
A.
so do they, so do you
B.
so they do, so you do
C.
so do they, so you do
D.
so they do, so do you
【单选题】The word science is heard so often, in modem times that almost everybody has some notion of its meaning. On the other hand, its definition is difficult for many people. The meaning of the term is conf...
A.
the study of unrelated subjects
B.
an attempt to explain natural phenomena
C.
the study of unrelated fields
D.
classified knowledge
【单选题】For a vessel with longitudinal inclination, an increase in GML causes ______.
A.
list to stabilize at an angle of loll
B.
trim to stabilize at an angle of loll
C.
trim to increase
D.
trim to decrease
【单选题】For a vessel with transverse inclination, an increase in GMT causes ______.
A.
list to stabilize at an angle of loll
B.
trim to decrease
C.
list to increase
D.
list to decrease
【单选题】For a vessel with list,a decrease in GMT will cause the inclination to（）.
A.
stabilize at an angle of loll
B.
decrease
C.
increase
D.
remain constant
【单选题】—— In modem times, girls like beautiful clothes.
A.
so do they, so do you
B.
so they do, so you do
C.
so do they, so you do
D.
so they do, so do you
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